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 FROSTY
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| posted on September 21st, 2009 at 12:22 PM |
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Distrubitor Points burning
I have been running a Mallory twin points dist for years ( old school) without a problem. I picked up the Voltmaster 2 coil that is matched for this
dist and it destroyed the points in about 5 mins. what would cause this? Wires neg- to the dist, pos+ to the ignition swich.
any suggestions. ( except throw the old shit in the bin...LOL)
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on September 21st, 2009 at 02:17 PM |
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Most times that happens it is the fault of the condesor.
Mine needed two condensors and they were big fat ines from Mallory originally.
Perhaps look on the mallory site?
| Quote: | Originally
posted by westi
That's mad Alan.
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FROSTY
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| posted on September 21st, 2009 at 05:53 PM |
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I have just down loaded the instal guide from Mallory and I don't have the ballist resistor. I'll try it again with it.
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clinker42
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| posted on September 21st, 2009 at 06:40 PM |
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Well done Frosty, Right on the money.
Points cant handle 12 volts, most cars that used to have points had resistors to reduce the volts down to 9 v. Most auto leccies sell em, the old
porcelain boxes with a wire coil inside.
On a side note, what made you go for a twin point.
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 vw54
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| posted on September 21st, 2009 at 06:53 PM |
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the condensor stops the points burning
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grumble
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| posted on September 21st, 2009 at 08:29 PM |
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You hit the nail on the head Frosty,without the ballast resistor there is no way that the poor condenser do its job.
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68AutoBug
A.k.a.: Lee Noonan
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| posted on September 22nd, 2009 at 12:08 AM |
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| Quote: | Originally
posted by FROSTY
I have been running a Mallory twin points dist for years ( old school) without a problem. I picked up the Voltmaster 2 coil that is matched for this
dist and it destroyed the points in about 5 mins. what would cause this? Wires neg- to the dist, pos+ to the ignition switch.
any suggestions.
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the Voltmaster coil is probably very low resistance with very high Output Voltage...
You are making the points work too hard...
maybe two new condensors would fix the problem??
How old were the points??
I just had to renew My points as the rubbing block had worn down and was shorting out on the shaft...
Just go back to the other coil you were using..
but still sounds like Your condensor has had it...
If the coil needs a resistor - its usually printed on the coil..
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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 matberry
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| posted on September 22nd, 2009 at 04:19 AM |
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Have to agree with the condensor crew.....my vote
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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FROSTY
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| posted on September 22nd, 2009 at 07:44 AM |
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Thanks Guys, I'm going to try the duel condensors with the resistor in the line in too.
It smashed the points and even started to melt the metal that holds the point itself, i was real suprised that only took about 3-4 minutes.
The reason I went to this distrubitor was I picked up two of them at a swap meet ten years ago for about $20 since then I have found another four (
cheap). The twn points are great as there is minimal wear to the points. They are totally adjustable being able to buy different tension springs for
the advance( not that I have touched them) and the maximum advance is easily adjusted too.
The reason for the coil change, I picked up the Voltmaster2 at the Action Day for $10 (bargin) The guys selling it said that he couln't gaurantee it
worked....It had the negative wired directly to the mounting bracket and that was obvious that it wouldn't if wired like that.
My new slogan is "One mans trash is another mans treasure" ( I've used it three times this week and its only Tuesday)
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jsheppard64
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| posted on September 23rd, 2009 at 12:14 AM |
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| Quote: | Originally
posted by FROSTY
Thanks Guys, I'm going to try the duel condensors with the resistor in the line in too.
It smashed the points and even started to melt the metal that holds the point itself, i was real suprised that only took about 3-4 minutes.
The reason I went to this distrubitor was I picked up two of them at a swap meet ten years ago for about $20 since then I have found another four (
cheap). The twn points are great as there is minimal wear to the points. They are totally adjustable being able to buy different tension springs for
the advance( not that I have touched them) and the maximum advance is easily adjusted too.
The reason for the coil change, I picked up the Voltmaster2 at the Action Day for $10 (bargin) The guys selling it said that he couln't gaurantee it
worked....It had the negative wired directly to the mounting bracket and that was obvious that it wouldn't if wired like that.
My new slogan is "One mans trash is another mans treasure" ( I've used it three times this week and its only Tuesday)
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if it's negative ground... could it be the coil has previously used with a CDI systems?
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matberry
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| posted on September 23rd, 2009 at 08:35 AM |
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Only use the balast resistor if you have a 9 volt coil. If it's 12 you will drastically reduce the output.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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FROSTY
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| posted on September 23rd, 2009 at 06:50 PM |
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I went with the twin condensors and it runs perfect. ( you learn something every day) I had it all packed up on the trailer for the tnt tonight and
they called off. The willobank office said that the vis was down to 100m at one point today.
thanks for your help!
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FROSTY
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| posted on October 5th, 2009 at 07:21 PM |
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I ran the twin condensors over the Warwick weekend and it worked perfect, I did try the 0.9 ohm Balist resistor on the input and really couldn't
tell the difference ( may be over time the points will show the difference) . I took the old coil and spare points just incase, looks like they will
go in a box under the house now.
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